Request Details

Route
/api_complex GET
Timestamp
Sep 22, 2026 7:15 PM
Duration
253.83 ms
Status
201
Response Size
77 KB
Error
No

Performance Breakdown

Database
8.4% (7 queries)
View Rendering
3.4%
Application Logic
88.2%
Other Operations
0.0%
Total Operations
15
Slowest Operation
253.83 ms

Request Trace

How to read this

Each row is a layer of your stack. Many short Database bars means N+1 queries — fix with includes(). A wide Action bar with little Database time means slow Ruby code. A wide View bar usually means a partial rendered in a loop.

Action
View
Database
Other
Action
View
Database
0.0ms 431.7ms 863.5ms 1295.2ms 1727.0ms

Operations

How to use this

Sort by Impact to find your biggest wins. Click any row for details and optimisation suggestions. The same SQL appearing multiple times is an N+1 — fix with includes(). A single operation above 50% impact is your highest priority.

Operation Duration Impact Timeline Actions
home#api_complex 254 ms 100.0%
home#api_complex 254 ms 100.0%
SELECT * FROM posts WHERE created_at > ? 27 ms 10.6%
layouts/application 30 ms 11.8%
SELECT users.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, SUM(posts.view_count) as total_views, AVG(posts.view_count) as avg_views, MIN(posts.created_at) as first_post, MAX(posts.created_at) as latest_post FR... 32 ms 12.6%
SELECT DISTINCT users.*, posts.*, comments.* FROM users, posts, comments WHERE users.id = posts.user_id AND posts.id = comments.post_id AND users.created_at > ? AND posts.created_at > ? AND comments.created_at > ? 23 ms 9.1%
DELETE FROM posts WHERE id = ? 16 ms 6.3%
INSERT INTO posts (user_id, title, content, published, created_at, updated_at) VALUES (?, ?, ?, ?, ?, ?) 17 ms 6.7%
posts/show 29 ms 11.4%
home#api_complex 254 ms 100.0%
home#api_complex 254 ms 100.0%
home#api_complex 254 ms 100.0%
home#api_complex 254 ms 100.0%
DELETE FROM comments WHERE created_at < ? 27 ms 10.6%
UPDATE posts SET title = ?, content = ?, updated_at = ? WHERE id = ? 3 ms 1.2%